- Feb 1, 2026: The Dead Are Rising
- Jan 24, 2026: Beavis and Butt-Head do Hollywood
- Jan 1, 2026: Year of Spore
- Dec 25, 2025: One Bad Ass Hedgehog - Shadow the Hedgehog
- Nov 26, 2025: A Mojave Thanksgiving - Fallout: New Vegas Prototype
- Oct 31, 2025: Happy Halloween 2025! Dark Empires Prototype & Craig Stitt Interview
- Jun 29, 2025: Animaniacs - Hollywood Hypnotics
- Feb 1, 2025: Frogger 2 Full Development Archive
- Jan 1, 2025: Happy NES Year
- Dec 26, 2024: NESMas - Day 2
- Dec 25, 2024: NESMas - Day 1
- Jul 6, 2024: Vanished without a Trace - Out of the Vortex for the Sega Mega Drive
- Apr 9, 2024: Crash Tag Team Racing (Xbox Prototype)
- Jan 21, 2024: Crash Bash and Spyro 3
- (earlier news)
Main Page
The Hidden Palace is a community dedicated to the preservation of video game development media (such as prototypes, hardware, source code, artwork, and more). This website can be utilized as a catalog for the items that we and others are able to collect and share.
If you are interested in contributing, please see our How to Contribute page.
- LEGO Creator Star Wars (prototype) by AubreyUnseen
- Sega Mega-CD BIOS (Nov 14, 1991 prototype) by Arctic Circle System
- Dishonored (Aug 7, 2012 prototype) by Gonzo
- Rise of the Guardians: The Video Game (Oct 19, 2012 prototype) by Funtimeandrefoxy
- 1 vs. 100 (Feb 25, 2009 prototype) by Revurt
- DON (Mar 9, 2012 prototype) by AubreyUnseen
- Garfield Fur Tech Demo (prototype) by AubreyUnseen
- Norse by Norsewest: The Return of the Lost Vikings (Feb 25, 1997 prototype) by Dink
- NFL Fever 2003 (Jun 24, 2002 prototype) by Dink
- Sega Mega-CD BIOS (Hoshino Special) by Gageiro (more)
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Thanks for contributing!
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Sonic Adventure 2 (May 21, 2001 prototype)
Championship Surfer (Aug 15, 2000 prototype)
Dave Mirra Freestyle BMX (Sep 20, 2000 prototype)
Dave Mirra Freestyle BMX (Nov 2, 2000 prototype)
Demolition Racer: No Exit (Aug 2, 2000 prototype)
Tee Off (Dec 8, 1999 prototype)
Discuss this release on the boards here!
Time for another round of Sega Dreamcast prototypes!
First we have a review prototype of Sonic Adventure 2! This prototype is dated a week before the final release, and contains a few differences in comparison. Most of the changes were done to a few object layout files along with a few other files as well. Can you find the differences?
Next we have two Dave Mirra Freestyle BMX prototypes. One is a relatively early preview copy while the other is a somewhat late review build. We also have a prototype of Demolition Racer: No Exit as well that was compiled a month before the final build. Finally, we also have a late localization prototype of Tee Golf too. It’s a prototype potpourri!
On the subject of Sega Dreamcast prototypes, we discovered a few prototypes we had in our collection were already dumped by Laurent and some other folks over the years as well. We redumped these games and provided more accurate dumps to replace the old inaccurate ones. These games are 4x4 Evolution (Jan 9, 2001 prototype), Ready 2 Rumble Boxing (Jul 7, 1999 prototype), Confidential Mission (Mar 3, 2001 prototype), and South Park Rally (Jun 9, 2000 prototype). Be sure to grab them!
Throughout the rest of March we will be releasing more prototypes specifically for the Sega Dreamcast. What other surprises are around the corner?
Until next time!





